It's definitely a possibility that the next Grand Theft Auto will be announced slated for a 2012 release, but I just don't see it happening. Although, GTA IV was announced at E3 in 2006, Rockstar North are currently working on Agent, and while there is absolutely no doubt in my mind that the next GTA is currently in development, there is no way Rockstar PR would juggle two games being made by one of their developers. Expect this E3 to be chock full of information on Max Payne 3 and Agent and maybe L.A. Noire if it doesn't stick to it's release schedule, which almost seems definite knowing Rockstar, if they do in fact attend.